Stage lamp waterproof cabinet with defogging function and stage lamp

Abstract

The utility model discloses a stage lamp waterproof case with defogging function and stage lamp relates to stage lamp technical field. The case includes case main part, display screen unit and photovoltaic power generation unit, and display screen unit includes electric heating glass, touch screen, temperature sensor and hygrothermograph, and photovoltaic power generation unit supplies power in parallel through photovoltaic module, energy storage battery and stage lamp power module. When hygrothermograph detects that touch screen temperature is lower than environmental dew point temperature and humidity is equal to or more than 60%RH, controller starts electric heating glass and heats to 40~50 DEG C, and continuously heats to temperature above dew point temperature 3 DEG C above. The utility model discloses through hygrothermal closed loop control and realizes automatic defogging, avoids touch failure and display blur, and photovoltaic power generation unit reduces main power dependence, improves energy saving and independent operation ability, and the sealing design and waterproof structure adapt to outdoor high humidity environment, prolong the life of equipment, and be applicable to professional show venue, outdoor travel and stay scene etc.

Description

Technical Field

[0001] This application relates to the field of stage lighting technology, and in particular to a waterproof stage lighting enclosure and stage light with defogging function. Background Technology

[0002] In professional performance venues, outdoor cultural and tourism venues, and urban landscape lighting, stage lights are often placed in long-term environments. Due to the high humidity and temperature difference outdoors, the surface of the display screen is prone to condensation and fogging, which directly affects the touch control response and the accuracy of parameter reading. Utility Model Content

[0003] To overcome the problems existing in related technologies, this application provides a waterproof stage light enclosure with defogging function. Through the coordinated control of integrated temperature and humidity sensors and photovoltaic power generation units, the touch screen can automatically defog in high humidity environments, ensuring clear display and reliable operation.

[0004] The first aspect of this application provides a waterproof stage light enclosure with defogging function, comprising:

[0005] The main body of the chassis has a mounting slot on one side, and the controller is located inside the main body of the chassis.

[0006] The display unit is sealed and embedded in the mounting groove, and includes an electrothermal glass, a touch screen, a temperature sensor, and a temperature and humidity sensor that are electrically connected to the controller. The electrothermal glass and the touch screen are sealed and overlapped. The detection end of the temperature sensor is attached to the edge of the touch screen, and the detection end of the temperature and humidity sensor is located outside the main body of the chassis. The controller, the electrothermal glass, the temperature sensor, and the temperature and humidity sensor form a defogging control closed loop.

[0007] The photovoltaic power generation unit includes a photovoltaic module, a photovoltaic charging controller, and an energy storage battery. The photovoltaic module is installed at an angle on one side of the main body of the chassis via a bracket, and its output end is electrically connected to the photovoltaic charging controller. The photovoltaic charging controller and the energy storage battery are both located inside the main body of the chassis. The energy storage battery is connected in parallel with the power module of the stage light to supply power to the controller, the electric heating glass, the temperature sensor, and the temperature and humidity sensor.

[0008] When the temperature and humidity sensor detects that the temperature of the touch screen is lower than the ambient dew point temperature and the humidity is ≥60%RH, the controller activates the electric heating glass to heat up to 40-50°C and continues to heat until the temperature of the touch screen is more than 3°C higher than the ambient dew point temperature.

[0009] In some embodiments, the photovoltaic module includes a monocrystalline silicon solar panel and an aluminum alloy frame, wherein the surface of the monocrystalline silicon solar panel is covered with tempered glass and sealed to the aluminum alloy frame by a sealing strip.

[0010] In some embodiments, the bracket includes an outer tube, a rod body, and connecting rods. The rod body is telescopically embedded in the outer tube, and the opening of the outer tube is provided with a clamp with a quick-locking buckle to fix the extended length of the rod body. One end of the rod body is hinged to a support frame for mounting photovoltaic modules. There are at least two connecting rods, one end of which is hinged to the support frame, and the other end of which is hinged to a mounting seat on the outer periphery of the rod body. The mounting seat has a plurality of hinge holes spaced apart along the axial direction of the rod body.

[0011] In some embodiments, one side of the main body of the chassis is provided with a wire hole for photovoltaic cables to pass through, the wire hole is filled with silicone rubber sealant, and the two ends of the photovoltaic cable are electrically connected to the photovoltaic module and the photovoltaic charging controller respectively through waterproof plugs.

[0012] In some embodiments, the energy storage battery is a lithium iron phosphate battery pack, which is composed of 3 to 6 individual lithium iron phosphate batteries connected in series. The total rated voltage of the lithium iron phosphate battery pack is 12V to 24V, and the total capacity is ≥5000mAh.

[0013] In some embodiments, the controller also integrates a power switching module, which includes relays K1 and K2; when the output power of the photovoltaic module is continuously ≥3W, relay K1 is energized and relay K2 is de-energized, and the photovoltaic power generation unit connects to the defogging control closed loop; when the output power is continuously <3W, relay K2 is energized and relay K1 is de-energized, and the stage light power module connects to the defogging control closed loop.

[0014] In some embodiments, a cooling fan located inside the chassis body is also included. The air outlet of the cooling fan faces the back of the display unit. The cooling fan is electrically connected to the controller. The controller controls the power supply circuit of the cooling fan by receiving an electrical signal from the temperature sensor attached to the edge of the touch screen: cooling is started when the touch screen temperature is ≥50°C and stopped when the temperature is ≤40°C.

[0015] In some embodiments, the main body of the chassis is provided with a waterproof and breathable valve, and a labyrinth-shaped airflow channel is formed between the waterproof and breathable valve and the cooling fan. The labyrinth-shaped airflow channel is filled with activated carbon adsorption cotton, and the pore size of the activated carbon adsorption cotton is 50-100μm, which is used to filter oil, dust and water vapor in the air.

[0016] In some embodiments, the electrothermal glass comprises an outer layer of tempered glass, an ITO transparent conductive film, and an inner layer of tempered glass, which are sequentially sealed and bonded together. The ITO transparent conductive film has a thickness ≤0.1mm and a sheet resistivity of 50~100Ω / m. 2 Light transmittance ≥90%.

[0017] A second aspect of this application provides a stage light, including the aforementioned waterproof housing with defogging function.

[0018] Compared with existing technologies, the advantages of the aforementioned waterproof stage light enclosure with defogging function are as follows:

[0019] The controller monitors the ambient temperature and humidity, as well as the touchscreen temperature, in real time using temperature and humidity sensors. When the touchscreen temperature is detected to be lower than the ambient dew point temperature and the humidity is ≥60%RH, the controller automatically activates the electric heating glass to raise the temperature to 40-50℃ and continues heating until the touchscreen temperature is more than 3℃ above the dew point temperature. This closed-loop control logic can accurately identify the risk of fogging and proactively intervene, avoiding touch control malfunctions or unclear parameter readings caused by fog condensation, and ensuring the stable operation of the stage lights in outdoor high humidity and temperature difference environments.

[0020] The photovoltaic power generation unit converts solar energy into electrical energy through photovoltaic modules, which is then stored in an energy storage battery via a photovoltaic charge controller. The energy storage battery is connected in parallel with the stage lighting power module. This design reduces reliance on the main stage lighting power supply, especially when outdoor lighting conditions are good, allowing priority to utilize solar energy and reducing energy consumption. At the same time, the energy storage battery serves as a backup power source, ensuring the continued operation of the defogging system when the stage lighting is powered off, thus improving the equipment's independent operation capability and reliability.

[0021] The display unit is sealed and embedded in the mounting slot of the main chassis. The heated glass and touch screen are sealed together, and together with the structural design of the chassis, effectively prevent external moisture and dust from entering. The temperature and humidity sensor is located outside the chassis to accurately collect environmental data, while the internal electronic components are waterproofed through a sealed layout. This design gives the chassis excellent waterproof performance, making it suitable for harsh outdoor environments such as rain and high humidity, and extending the service life of the equipment.

[0022] The controller monitors the touchscreen temperature in real time using a temperature sensor, ensuring that the heating temperature of the electrothermal glass is strictly controlled within the efficient defogging range of 40-50℃. This avoids both incomplete defogging due to excessively low temperatures and overheating that could damage the touchscreen or consume excessive energy. This precise temperature control mechanism enhances system safety and energy efficiency while ensuring effective defogging. Attached Figure Description

[0023] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0024] Figure 1 This is a schematic diagram of the structure of a waterproof stage light housing with defogging function shown in an embodiment of this application;

[0025] Figure 2 This is an exploded schematic diagram of a waterproof stage light housing with defogging function, as shown in an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the overall structure of the stage lamp shown in the embodiment of this application.

[0027] Figure label:

[0028] 1. Chassis body; 10. Mounting slot; 2. Display screen unit; 3. Photovoltaic power generation unit; 31. Photovoltaic module; 32. Energy storage battery; 33. Bracket; 331. Outer tube; 332. Pole; 333. Connecting rod; 334. Mounting bracket; 335. Mounting base; 4. Cooling fan. Detailed Implementation

[0029] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0031] See Figures 1 to 3 This utility model proposes a waterproof stage light housing with defogging function, comprising:

[0032] The main body of the chassis 1 has a mounting slot 10 on one side, and a controller is installed inside the main body of the chassis 1.

[0033] The display unit 2 is sealed and embedded in the mounting groove 10, and includes an electrothermal glass, a touch screen, a temperature sensor and a temperature and humidity sensor that are electrically connected to the controller. The electrothermal glass and the touch screen are sealed and overlapped. The detection end of the temperature sensor is attached to the edge of the touch screen, and the detection end of the temperature and humidity sensor is located outside the main body 1 of the chassis.

[0034] The controller, heated glass, temperature sensor, and temperature and humidity sensor form a closed-loop control circuit for defogging.

[0035] The photovoltaic power generation unit 3 includes a photovoltaic module 31, a photovoltaic charging controller, and an energy storage battery 32. The photovoltaic module 31 is installed at an angle on one side of the main body 1 of the chassis via a bracket 33, and its output end is electrically connected to the photovoltaic charging controller. The photovoltaic charging controller and the energy storage battery 32 are both located inside the main body 1 of the chassis. The energy storage battery 32 is connected in parallel with the power module of the stage light to supply power to the controller, the electric heating glass, the temperature sensor, and the temperature and humidity sensor.

[0036] When the temperature and humidity sensor detects that the temperature of the touch screen is lower than the ambient dew point temperature and the humidity is ≥60%RH, the controller activates the electric heating glass to heat up to 40-50°C and continues to heat until the temperature of the touch screen is more than 3°C higher than the ambient dew point temperature.

[0037] Specifically, the main body 1 of the chassis can be made of plastic or aluminum alloy. The main body 1 includes an open shell and a base plate. A rectangular mounting groove 10 is opened on one side of the open shell, and an EPDM sealing strip is set around the perimeter of the groove. The controller, photovoltaic charging controller, energy storage battery 32 and stage light power module are installed and fixed on the base plate. The open shell and the base plate achieve structural sealing of the main body 1 through the sealing strip and are fixed with bolts. The controller can be a microcontroller, while the display unit 2 is sealed and embedded in the mounting groove 10 with stainless steel bolts. The electrothermal glass and the touch screen are vacuum bonded with optical adhesive, and the edges are sealed with butyl rubber. The temperature sensor can be a PT100 type temperature sensor, and its detection end is attached to the lower right corner edge of the touch screen with thermally conductive silicone grease. The temperature and humidity sensor can be a SHT30 type temperature and humidity sensor. The outer side of the main body 1 has a through hole, which is filled with a silicone rubber sealant. The detection end of the temperature and humidity sensor passes through the silicone rubber sealant and extends 5mm outside the main body 1. A dustproof, waterproof and breathable cover is installed at the probe. The photovoltaic module 31 of the photovoltaic power generation unit 3 is fixed to the top of the main body 1 of the chassis by a bracket 33 with a tilt angle of 30°. The photovoltaic charging controller and the energy storage battery 32 are connected in series and form a parallel power supply circuit with the 220V power module of the stage lights. When the temperature and humidity sensor detects that the ambient humidity is ≥60%RH and the touch screen temperature is lower than the dew point temperature, the controller drives the electric heating glass to heat at a power of 5V / 2A, and collects temperature sensor data in real time until the touch screen temperature is 3°C higher than the dew point temperature and then stops heating.

[0038] In this embodiment, the present invention utilizes a closed-loop defogging control circuit formed by a controller, electrothermal glass, temperature sensor, and humidity sensor. This circuit monitors the touchscreen temperature and ambient temperature and humidity in real time. When the touchscreen temperature is below the dew point and the humidity is ≥60%RH, the system automatically starts heating to 40-50°C and continues heating until the temperature is 3°C above the dew point, achieving precise defogging in high-humidity environments and preventing fog from affecting touch response and parameter reading. The photovoltaic power generation unit 3 is connected in parallel with the stage light power module, prioritizing the use of solar energy to reduce energy consumption. The energy storage battery 32 serves as a backup power source to ensure the defogging system continues to operate during power outages, enhancing the equipment's independent operation capability. The sealed mounting design of the display unit 2, combined with the structure of the main chassis 1, effectively prevents external moisture and dust from entering, adapting to harsh outdoor environments and extending the equipment's service life.

[0039] Furthermore, the photovoltaic module 31 includes a monocrystalline silicon solar panel and an aluminum alloy frame. The surface of the monocrystalline silicon solar panel is covered with tempered glass and sealed to the aluminum alloy frame with a sealing strip. The photovoltaic module 31 uses a monocrystalline silicon solar panel, with a size of 300mm × 200mm, and the frame is made of aluminum alloy profile. The surface of the solar panel is covered with ultra-clear tempered glass, and EPDM sealing strips are filled between the tempered glass and the aluminum alloy frame. An IP65 protection rating is achieved through mechanical pressing.

[0040] In this embodiment, the photovoltaic module 31 uses a monocrystalline silicon solar panel to improve photoelectric conversion efficiency, an aluminum alloy frame to enhance structural strength, and a tempered glass cover on the surface, which is sealed with a sealing strip to achieve IP65 waterproof and dustproof performance. This ensures that the photovoltaic module 31 can operate stably for a long time in outdoor rainy and humid environments, thus extending its service life.

[0041] To improve the light-gathering and power generation efficiency of the photovoltaic power generation unit 3, based on the above specific implementation method, the support 33 includes an outer tube 331, a rod 332, and connecting rods 333. The rod 332 is telescopically embedded in the outer tube 331. The opening of the outer tube 331 is provided with a clamp with a quick-locking buckle to fix the extended length of the rod 332. One end of the rod 332 is hinged to a support frame for mounting the photovoltaic module 31. There are at least two connecting rods 333, one end of which is hinged to the support frame, and the other end is hinged to a mounting seat 335 on the outer periphery of the rod 332. The mounting seat 335 has several hinge holes spaced apart along the axial direction of the rod 332. The outer tube 331 is a galvanized steel pipe with a diameter of 50 mm, and the rod 332 is an aluminum alloy pipe with a diameter of 45 mm. The two are locked together by a clamp with a butterfly bolt. The telescopic adjustment range of the rod 332 is 300-800 mm. The top of the pole 332 is hinged to a support frame via stainless steel hinges. There are four connecting rods 333, one end of which is hinged to the ear plates at the four corners of the support frame, and the other end is connected to the mounting base 335 on the outer periphery of the pole 332. The mounting base 335 has a hinge hole every 50mm along the axial direction of the pole 332, and the tilt angle of the photovoltaic module 31 can be adjusted by selecting different hole positions.

[0042] The bracket 33 is connected to the telescopic rod 332 via the outer tube 331, and the length can be adjusted by using a clamp with a quick-locking buckle to meet the needs of different installation scenarios. The hinge structure between the rod 332 and the support frame and the design of multiple hinge holes allow the tilt angle of the photovoltaic module 31 to be flexibly adjusted within the range of 15° to 45°. The orientation of the photovoltaic panel can be optimized according to different latitudes or seasonal sunlight angles to improve the efficiency of solar energy collection.

[0043] Furthermore, one side of the main body 1 of the chassis has a wire hole for the photovoltaic cable to pass through, and the wire hole is filled with a silicone rubber sealant. The two ends of the photovoltaic cable are electrically connected to the photovoltaic module 31 and the photovoltaic charging controller respectively through waterproof plugs. A wire hole is opened on the right side wall of the main body 1, which is filled with a silicone rubber sealant with a Shore hardness of 60. After the photovoltaic cable passes through the silicone rubber sealant, the two ends are connected to the waterproof plug and the input terminal of the photovoltaic charging controller respectively. The plug joint is wrapped with self-adhesive waterproof tape.

[0044] In this embodiment, the cable hole is filled with silicone rubber sealant, which, together with the waterproof plugs at both ends, forms multiple layers of sealing protection, effectively preventing rainwater and moisture from entering the chassis through the cable passage, further improving the overall waterproof performance of the chassis and adapting it to humid outdoor environments.

[0045] Furthermore, the energy storage battery 32 is a lithium iron phosphate battery pack, which consists of 3 to 6 individual lithium iron phosphate batteries connected in series. The total rated voltage of the lithium iron phosphate battery pack is 12V to 24V, and the total capacity is ≥5000mAh. Specifically, the energy storage battery 32 uses four 3.2V / 1500mAh lithium iron phosphate batteries connected in series to form a 12.8V / 6000mAh battery pack. The battery pack is covered with a flame-retardant silicone sleeve and connected by spot welding with nickel sheets.

[0046] In this embodiment, the lithium iron phosphate battery pack features long charge-discharge cycle life and good high-temperature stability. The 12V-24V voltage system composed of 3 to 6 cells connected in series and the ≥5000mAh capacity can provide a stable and long-lasting backup power for the defogging system, ensuring that the defogging function can still be maintained when the main power supply of the stage lights is interrupted, thereby improving the reliability of the equipment.

[0047] To improve energy efficiency, the controller also integrates a power switching module, which includes relays K1 and K2. When the output power of the photovoltaic module 31 is continuously ≥3W, relay K1 is activated and relay K2 is deactivated, and the photovoltaic power generation unit 3 connects to the defogging control closed loop. When the output power is continuously <3W, relay K2 is activated and relay K1 is deactivated, and the stage light power module connects to the defogging control closed loop.

[0048] Specifically, the power switching module uses two DC12V electromagnetic relays (K1, K2), whose normally closed contacts are connected to the stage light power module and the energy storage battery 32, respectively. When the output power of the photovoltaic module 31 is ≥3W for 30 seconds, the controller outputs a high level to drive K1 to close, switching to power supply from the photovoltaic power generation unit 3; when the power is <3W for 1 minute, K2 closes to switch to power supply from the stage light power module. During the switching process, the controller's power supply continuity is maintained through a 0.1F supercapacitor.

[0049] In this embodiment, the power switching module automatically switches between photovoltaic power and stage lighting power via a relay: when the photovoltaic output power is ≥3W, solar power is used first to reduce the main power consumption; when the power is insufficient, it automatically switches to the stage lighting power to ensure the continuous operation of the defogging system. This intelligent switching mechanism optimizes energy utilization efficiency, reduces dependence on the main power supply, and improves the system's energy efficiency and independence.

[0050] Furthermore, the waterproof chassis also includes a cooling fan 4 housed within the chassis body 1. The exhaust vent of the cooling fan 4 faces the back of the display unit 2. The cooling fan 4 is electrically connected to the controller, which controls the power supply circuit of the cooling fan 4 by receiving electrical signals from the temperature sensor attached to the edge of the touchscreen: cooling is activated when the touchscreen temperature is ≥50℃ and stopped when the temperature is ≤40℃. The cooling fan 4 is a 12V / 0.3A axial fan, fixed 50mm from the back of the display unit 2 by a bracket 33, with the exhaust vent facing the touchscreen PCB board. The controller collects temperature sensor data in real time; when the touchscreen temperature is ≥50℃, the fan power supply circuit is activated; when the temperature drops to ≤40℃, the fan stops operating.

[0051] In this embodiment, the cooling fan 4 is linked with the temperature sensor for control. When the touch screen temperature is ≥50℃, the cooling is activated and when it is ≤40℃, the cooling is stopped. This avoids the touch screen from overheating and being damaged due to continuous heating of the electrothermal glass. At the same time, it prevents ineffective heat dissipation energy consumption in low-temperature environments, thereby improving the system's energy efficiency ratio while ensuring equipment safety.

[0052] Furthermore, the chassis body 1 is equipped with a waterproof and breathable valve, which forms a labyrinthine airflow channel with the cooling fan 4. The labyrinthine airflow channel is filled with activated carbon absorbent cotton with a pore size of 50-100μm, used to filter oil, dust, and moisture from the air. Two M12 waterproof and breathable valves are located on the top of the chassis body 1, with a permeability ≥500ml / min. These valves, together with the cooling fan 4, form a "Z"-shaped labyrinthine airflow channel via an ABS plastic guide plate. The channel is filled with activated carbon absorbent cotton with a pore size of 50-100μm, which is fixed by a plastic frame and can be periodically disassembled and replaced.

[0053] In this embodiment, the labyrinthine airflow channel formed by the waterproof and breathable valve and the cooling fan 4 not only ensures air circulation and heat dissipation inside and outside the chassis, but also prevents liquid water from entering by extending the path; the activated carbon adsorption cotton with a pore size of 50-100μm filled in the channel can effectively filter oil, dust and water vapor in the air, prevent pollutants from adhering to internal components, extend the service life of the equipment and maintain heat dissipation efficiency.

[0054] Furthermore, the electrothermal glass comprises an outer layer of tempered glass, an ITO transparent conductive film, and an inner layer of tempered glass, which are sequentially sealed and bonded together. The ITO transparent conductive film has a thickness ≤0.1mm, a surface resistivity of 50~100Ω / m², and a light transmittance ≥90%. The electrothermal glass adopts a three-layer composite structure: the outer layer is 4mm thick ultra-clear tempered glass with a light transmittance ≥92%; the middle layer is a 0.08mm thick ITO transparent conductive film with a surface resistivity of 70Ω / m². 2 The inner layer is 3mm tempered glass, and the three layers are bonded together by hot pressing with PVB film at 130℃ and 0.7MPa. Conductive film leads are printed on the glass edge with silver paste and connected to the controller via FPC flexible wires.

[0055] In this embodiment, the electrothermal glass adopts a three-layer sealed structure consisting of an outer tempered glass layer, an ITO transparent conductive film, and an inner tempered glass layer. The ITO film thickness is ≤0.1mm and the surface resistivity is 50~100Ω / m. 2 This ensures uniform heating while maintaining a light transmittance of ≥90%, guaranteeing both defogging effectiveness and avoiding impact on touchscreen display clarity, thus balancing functionality and visual experience.

[0056] This utility model also proposes a stage light, which includes a lamp body, an optical system, a drive module, and the aforementioned waterproof chassis with defogging function. The chassis body 1 is fixed to the lamp body mounting bracket 334 by four M8 bolts. The touch control signals of the display screen unit 2 are connected to the main controller of the stage light via an RS485 bus to realize parameter setting and status monitoring functions. The photovoltaic module 31 of the photovoltaic power generation unit 3 is installed on the top side of the lamp body via a foldable bracket 33 to ensure light collection efficiency. The stage light integrates the aforementioned waterproof chassis, giving it comprehensive advantages such as automatic defogging, photovoltaic energy saving, high-level waterproofing, and intelligent temperature control. It can operate stably in outdoor environments with high humidity and temperature differences, and in rainy and dusty conditions, solving the problems of traditional stage light displays being prone to fogging, relying on main power supply, and insufficient waterproofing performance. This improves the applicability and reliability of the equipment in professional performance venues, outdoor cultural and tourism venues, and other scenarios.

[0057] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A waterproof housing for a stage light with defogging function, characterized in that, include: The main body of the chassis (1) has a mounting slot (10) on one side, and a controller is provided inside the main body of the chassis (1); The display unit (2) is sealed and embedded in the mounting groove (10), including an electric heating glass, a touch screen, a temperature sensor and a temperature and humidity sensor that are electrically connected to the controller. The electric heating glass is sealed and overlapped with the touch screen. The detection end of the temperature sensor is attached to the edge of the touch screen. The detection end of the temperature and humidity sensor is located outside the chassis body (1). The controller, heated glass, temperature sensor, and temperature and humidity sensor form a closed-loop control circuit for defogging. The photovoltaic power generation unit (3) includes a photovoltaic module (31), a photovoltaic charging controller and an energy storage battery (32). The photovoltaic module (31) is installed at an angle on one side of the main body of the chassis (1) through a bracket (34). Its output end is electrically connected to the photovoltaic charging controller. The photovoltaic charging controller and the energy storage battery (32) are both located inside the main body of the chassis (1). The energy storage battery (32) is connected in parallel with the power module of the stage light to supply power to the controller, the electric heating glass, the temperature sensor and the temperature and humidity sensor. When the temperature and humidity sensor detects that the temperature of the touch screen is lower than the ambient dew point temperature and the humidity is ≥60%RH, the controller activates the electric heating glass to heat up to 40-50°C and continues to heat until the temperature of the touch screen is more than 3°C higher than the ambient dew point temperature.

2. The waterproof stage light housing with defogging function according to claim 1, characterized in that, The photovoltaic module (31) includes a monocrystalline silicon solar panel and an aluminum alloy frame. The surface of the monocrystalline silicon solar panel is covered with tempered glass and sealed to the aluminum alloy frame with a sealing strip.

3. The waterproof stage light housing with defogging function according to claim 2, characterized in that, The bracket (34) includes an outer tube (341), a rod (342), and connecting rods (343). The rod (342) is telescopically embedded in the outer tube (341). The outer tube (341) has a clamp with a quick-locking buckle at the opening to fix the extension length of the rod (342). One end of the rod (342) is hinged to a support frame for installing photovoltaic modules (31). There are at least two connecting rods (343), one end of which is hinged to the support frame, and the other end is hinged to a mounting seat (345) on the outer periphery of the rod (342). The mounting seat (345) has several hinge holes spaced apart along the axial direction of the rod (342).

4. The waterproof stage light housing with defogging function according to claim 3, characterized in that, The main body (1) of the chassis has a wire hole on one side for photovoltaic cables to pass through. The wire hole is filled with silicone rubber sealant. The two ends of the photovoltaic cable are electrically connected to the photovoltaic module (31) and the photovoltaic charging controller respectively through waterproof plugs.

5. The waterproof stage light housing with defogging function according to claim 4, characterized in that, The energy storage battery (32) is a lithium iron phosphate battery pack, which is composed of 3 to 6 individual lithium iron phosphate batteries connected in series. The total rated voltage of the lithium iron phosphate battery pack is 12V to 24V, and the total capacity is ≥5000mAh.

6. The waterproof stage light housing with defogging function according to claim 5, characterized in that, The controller also integrates a power switching module, which includes relays K1 and K2. When the output power of the photovoltaic module (31) is continuously ≥3W, relay K1 is activated and relay K2 is deactivated, and the photovoltaic power generation unit (3) connects to the defogging control closed loop. When the output power is continuously <3W, relay K2 is activated and relay K1 is deactivated, and the power module of the stage light connects to the defogging control closed loop.

7. The waterproof stage light housing with defogging function according to claim 1, characterized in that, It also includes a cooling fan (4) located inside the chassis body (1). The air outlet of the cooling fan (4) faces the back of the display unit (2). The cooling fan (4) is electrically connected to the controller. The controller controls the power supply circuit of the cooling fan (4) by receiving the electrical signal of the temperature sensor attached to the edge of the touch screen: when the touch screen temperature is ≥50℃, the cooling is started, and when the temperature is ≤40℃, the cooling is stopped.

8. The waterproof stage light housing with defogging function according to claim 7, characterized in that, The main body of the chassis (1) is equipped with a waterproof and breathable valve. A labyrinth-style airflow channel is formed between the waterproof and breathable valve and the cooling fan (4). The labyrinth-style airflow channel is filled with activated carbon adsorption cotton. The pore size of the activated carbon adsorption cotton is 50-100μm, which is used to filter oil, dust and water vapor in the air.

9. The waterproof stage light housing with defogging function according to claim 1, characterized in that, The electrothermal glass comprises an outer layer of tempered glass, an ITO transparent conductive film, and an inner layer of tempered glass, which are sequentially sealed and bonded together. The ITO transparent conductive film has a thickness of ≤0.1mm and a surface resistivity of 50~100Ω / m. 2 Light transmittance ≥90%.

10. A stage light, characterized in that, Including the waterproof stage light housing with defogging function as described in any one of claims 1 to 9.

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